<template>
  <div id="aCoursesList" class="bg-fa of">
    <!-- /课程详情 开始 -->
    <section class="container">
      <section class="path-wrap txtOf hLh30">
        <a href="/" title class="c-999 fsize14">首页</a>
        \
        <a href="/course" title class="c-999 fsize14">{{
          course.subjectLevelOne
        }}</a>
        \
        <span class="c-333 fsize14">{{ course.subjectLevelTwo }}</span>
      </section>
      <div>
        <article class="c-v-pic-wrap" style="height: 357px">
          <section class="p-h-video-box" id="videoPlay">
            <img :src="course.cover" :alt="course.title" class="dis c-v-pic" height="355px" width="630px" />
          </section>
        </article>
        <aside class="c-attr-wrap">
          <section class="ml20 mr15">
            <h2 class="hLh30 txtOf mt15">
              <span class="c-fff fsize24">{{ course.title }}</span>
            </h2>
            <section class="c-attr-jg">
              <span class="c-fff">价格：</span>
              <b class="c-yellow" style="font-size: 24px">￥{{ course.price }}</b>
            </section>
            <section class="c-attr-mt c-attr-undis">
              <span class="c-fff fsize14">主讲： {{ course.teacherName }}&nbsp;&nbsp;&nbsp;</span>
            </section>
            <section class="c-attr-mt of">
              <span class="ml10 vam" v-if="isCollect == true">
                <em class="icon18 scIcon"></em>
                <button class="c-fff vam" title="已收藏" @click="cancelCollect">已收藏</button>
              </span>
              <span class="ml10 vam" v-else>
                <em class="icon18 scIcon"></em>
                <button class="c-fff vam" title="收藏" @click="addCollect">收藏</button>
              </span>
            </section>
            <section class="c-attr-mt" v-if="isbuyCourse || Number(course.price) == 0">
              <a @click="toPlay(chapterList[0].children[0])" href="#" title="立即观看" class="comm-btn c-btn-3">立 即 观 看</a>
            </section>
            <section class="c-attr-mt" v-else>
              <a @click="createOrders()" href="#" title="立即购买" class="comm-btn c-btn-3">立 即 购 买</a>
            </section>
          </section>
        </aside>
        <aside class="thr-attr-box">
          <ol class="thr-attr-ol">
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">销量</span>
                <br />
                <h6 class="c-fff f-fM mt10">{{ course.buyCount }}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">课时数</span>
                <br />
                <h6 class="c-fff f-fM mt10">{{ course.lessonNum }}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">浏览数</span>
                <br />
                <h6 class="c-fff f-fM mt10">{{ course.viewCount }}</h6>
              </aside>
            </li>
          </ol>
        </aside>
        <div class="clear"></div>
      </div>
      <!-- /课程封面介绍 -->
      <div class="mt20 c-infor-box">
        <article class="fl col-7">
          <section class="mr30">
            <div class="i-box">
              <div>
                <section id="c-i-tabTitle" class="c-infor-tabTitle c-tab- title">
                  <a name="c-i" class="current" title="课程详情">课 程 详 情</a>
                </section>
              </div>
              <article class="ml10 mr10 pt20">
                <div>
                  <h6 class="c-i-content c-infor-title">
                    <span>课程介绍</span>
                  </h6>
                  <div class="course-txt-body-wrap">
                    <section class="course-txt-body">
                      <p v-html="course.description">
                        {{ course.description }}
                      </p>
                    </section>
                  </div>
                </div>
                <!-- /课程介绍 -->
                <div class="mt50">
                  <h6 class="c-g-content c-infor-title">
                    <span>课程大纲</span>
                  </h6>
                  <section class="mt20">
                    <div class="lh-menu-wrap">
                      <menu id="lh-menu" class="lh-menu mt10 mr10">
                        <ul v-if="isbuyCourse==true || course.price == 0">
                          <!-- 文件目录 -->
                          <li class="lh-menu-stair" v-for="chapter in chapterList" :key="chapter.id">
                            <a href="#" :title="chapter.title" class="current-1">
                              <em class="lh-menu-i-1 icon18 mr10"></em>{{ chapter.title }}
                            </a>
                            <ol class="lh-menu-ol" style="display: block">
                              <li class="lh-menu-second ml30" v-for="video in chapter.children" :key="video.id">
                                <div target="_blank" style="cursor: pointer;margin: 5px;" @click="toPlay(video)">
                                  <!-- <span class="fr" v-if="video.isFree == true">
                                    <i class="free-icon vam mr10" >免费试听</i>
                                  </span> -->
                                  <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{ video.title }}
                                </div>
                              </li>
                            </ol>
                          </li>
                        </ul>
                        <ul v-else>
                          <!-- 文件目录 -->
                          <li class="lh-menu-stair" v-for="chapter in chapterList" :key="chapter.id">
                            <a href="#" :title="chapter.title" class="current-1">
                              <em class="lh-menu-i-1 icon18 mr10"></em>{{ chapter.title }}
                            </a>
                            <ol class="lh-menu-ol" style="display: block">
                              <li class="lh-menu-second ml30" v-for="video in chapter.children" :key="video.id">
                                <div target="_blank" style="cursor: pointer;margin: 5px;">
                                  <span class="fr" v-if="video.isFree == true">
                                    <i class="free-icon vam mr10" @click="toPlay(video)">免费试听</i>
                                  </span>
                                  <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{ video.title }}
                                </div>
                              </li>
                            </ol>
                          </li>
                        </ul>
                      </menu>
                    </div>
                  </section>
                </div>
                <!-- /课程大纲 -->
              </article>
            </div>
          </section>
        </article>
        <aside class="fl col-3">
          <div class="i-box">
            <div>
              <section class="c-infor-tabTitle c-tab-title">
                <a title href="#">主讲讲师</a>
              </section>
              <section class="stud-act-list">
                <ul style="height: auto">
                  <li @click="toTeacher(course.ownerId)">
                    <div class="u-face">
                      <img :src="course.avatar" width="50" height="50" alt />
                    </div>
                    <section class="hLh30 txtOf">
                      <a class="c-333 fsize16 fl" href="#">{{
                        course.teacherName
                      }}</a>
                    </section>
                    <section class="hLh20 txtOf">
                      <span class="c-999">{{ course.intro }}</span>
                    </section>
                  </li>
                </ul>
              </section>
            </div>
          </div>
        </aside>
        <div class="clear"></div>
      </div>
      <!-- /课程详情 结束 -->
      <div class="mt50 commentHtml">
        <div>
          <h6 class="c-c-content c-infor-title" id="i-art-comment">
            <span class="commentTitle">课程评论</span>
          </h6>
          <section class="lh-bj-list pr mt20 replyhtml">
            <ul>
              <li class="unBr">
                <aside class="noter-pic">
                  <img width="50" height="50" class="picImg" src="~/assets/img/avatar-boy.gif" />
                </aside>
                <div class="of">
                  <section class="n-reply-wrap">
                    <fieldset>
                      <textarea name="" v-model="comment.content" placeholder="输入您要评论的文字" id="commentContent"></textarea>
                    </fieldset>
                    <p class="of mt5 tar pl10 pr10">
                      <span class="fl"><tt class="c-red commentContentmeg" style="display: none"></tt></span>
                      <input type="button" @click="addComment()" value="回复" class="lh-reply-btn" />
                    </p>
                  </section>
                </div>
              </li>
            </ul>
          </section>
          <section class="">
            <section class="question-list lh-bj-list pr">
              <ul class="pr10">
                <li v-for="comment in data.items" :key="comment.id">
                  <aside class="noter-pic">
                    <img width="50" height="50" class="picImg" :src="comment.avatar" />
                  </aside>
                  <div class="of">
                    <span class="fl">
                      <font class="fsize12 c-blue">{{ comment.nickname }}</font>
                      <font class="fsize12 c-999 ml5">评论：</font>
                    </span>
                  </div>
                  <div class="noter-txt mt5">
                    <p>{{ comment.content }}</p>
                  </div>
                  <div class="of mt5">
                    <span class="fr">
                      <font class="fsize12 c-999ml5">{{
                        comment.gmtCreate
                      }}</font>
                    </span>
                  </div>
                </li>
              </ul>
            </section>
          </section>
          <!-- 公共分页 开始 -->
          <div class="paging">
            <!-- undisable这个class是否存在，取决于数据属性hasPrevious -->
            <a :class="{ undisable: !data.hasPrevious }" href="#" title="首页" @click.prevent="gotoPage(1)">首</a>
            <a :class="{ undisable: !data.hasPrevious }" href="#" title="前一页"
              @click.prevent="gotoPage(data.current - 1)">&lt;</a>
            <a v-for="page in data.pages" :key="page" :class="{
                  current: data.current == page,
                  undisable: data.current == page,
                }" :title="'第' + page + '页'" href="#" @click.prevent="gotoPage(page)">{{ page }}</a>
            <a :class="{ undisable: !data.hasNext }" href="#" title="后一页"
              @click.prevent="gotoPage(data.current + 1)">&gt;</a>
            <a :class="{ undisable: !data.hasNext }" href="#" title="末页" @click.prevent="gotoPage(data.pages)">末</a>
            <div class="clear" />
          </div>
          <!-- 公共分页 结束 -->
        </div>
      </div>
    </section>
  </div>
</template>
<script>
import courseApi from "@/api/course";
import comment from "@/api/commonedu";
import orderApi from "@/api/order";
export default {
  methods: {
    //生成订单的方法
    createOrders() {
      orderApi.createOrder(this.course.courseId).then((resp) => {
        if (resp.data.success) {
          //获取返回订单号
          resp.data.data.orderNo;
          //跳转订单显示页面
          this.$router.push({ path: "/orders/" + resp.data.data.orderNo });
        } else {
          this.$message = resp.data.message
        }
      });
    },
    //获取课程详细信息
    getCourseInfo() {
      courseApi.getFrontCourseInfo(this.course.courseId).then((resp) => {
        this.chapterList = resp.data.data.items
        this.course = resp.data.data.item
        this.isbuyCourse = resp.data.data.isBuy
        this.course.courseId = resp.data.data.item.id
        this.isCollect = resp.data.data.isCollect
      });
    },
    initComment() {
      comment
        .getPageList(this.page, this.limit, this.course.courseId)
        .then((response) => {
          this.data = response.data.data;
        });
    },
    addComment() {
      this.comment.courseId = this.course.courseId;
      this.comment.teacherId = this.course.ownerId;
      comment.addComment(this.comment).then((response) => {
        if (response.data.success) {
          this.$message({
            message: "评论成功",
            type: "success",
          });
          this.comment.content = "";
          this.initComment();
        }
      });
    },
    gotoPage(page) {
      comment.getPageList(page, this.limit, this.courseId).then((response) => {
        this.data = response.data.data;
      });
    },
    toPlay(vid) {
      if (vid == null || vid == '') {
        this.$message({
          message: "暂无视频资源",
          type: "fail",
        });
      } else {
        this.$router.push({
          name: 'player',
          params: {
            vid: vid.videoSourceId,
            courseId: this.course.courseId
          }
        })
      }
    },
    //移除收藏
    cancelCollect() {
      courseApi.cancelCollect(this.course.courseId).then((resp) => {
        if (resp.data.success) {
          this.isCollect = false
          this.$message({
            message: "移除收藏成功",
            type: "success",
          });
        } else {
          this.$message({
            message: "移除收藏失败",
            type: "fail",
          });
        }
      })
    },
    //添加收藏
    addCollect() {
      courseApi.saveCollect(this.course.courseId).then((resp) => {
        if (resp.data.success) {
          this.isCollect = true
          this.$message({
            message: "收藏成功",
            type: "success",
           
          });
        } else {
          this.$message({
            message: "收藏失败",
            type: "fail",
          });
        }
      }) 
    },
    toTeacher(id) {
      this.$router.push({
        name: 'teacher-id',
        params: {
          id: id
        }
      })
    }
  },
  data() {
    return {
      chapterList: [],
      course: {
        courseId: "",
        ownerId:""
      },
      data: {},
      page: 1,
      limit: 4,
      total: 10,
      comment: {
        content: "",
        courseId: "",
        teacherId: "",
      },
      isbuyCourse: false,
      isCollect: false,
    };
  },
  created() {
    this.course.courseId = this.$route.params.id;
    ////获取课程详细信息
    this.getCourseInfo();
    this.initComment();

  },
};
</script>
